Multiple-cylinder drying machine



May 31; 1927. 1,630,331

G. DOD

MULTIPLE CYLINDE R I R D Y N3 MACHINE Y Filed March 24, 1926 3. Sheets-Sheet 1 y 1927 e. DOD

MULTIPLE CYLINDER DRYING MACHINE Filed March 24, 1926 3 Sheets-Sheet 2 \EH M EK 1 iii I May 31, 1927. t 1,630,331

G DO D MULTIPLE CYLINDER DRYING MACHINE Filed March 24. 1926 3 Sheets-Sheet 3 patented as a1, 1927.

LD DOD; n r :WMNi). I

I MULTIPLECYLi ND EiR Beams rnerrrunf Application filed. March 24, ieae'seriai Releases, an i in Great Britain March 31; 1925 llhis invention refers to multiple cylinderdrying machines as used 1n the drying or fabric, paper, and like materials.

The objects of the invention are .(l) to equalize the dryingof the material across'its. full Width, orin the case of two lengths of; material passing through the :niachine' side by side,

to equalize the drying of the hole xvidth of each length, and (2) to more effectively maintain the supply of suflicient heat; units in the body of each cylinder for dry ng 1 bearingof a cylinder;

the material to the required degree According to the invention. instead of the steam-being ted to all the cylinders as heretofore at corresponding ends, it is fed to con secutive cylinders, or consecutive pairs or sets of cylinders from opposite ends, the order of cylinders following the traverse ot' the material to be dried. The Water of condensation is discharged from the cylindersin like manner from opposite ends of con secutive cylinders, ,or consecutive'pairs or sets of'cylinders. I:

In thus feeding steam to the cylinders'and' leading, away the Water of condensation, the

material passing-through the machine ismore evenly dried across its full width, espe cially when the cylinders are fed with steam in pairs from opposite ends, when every part of the cloth at. eachedge comes in contact vv'ith the steam end of a cylinder. I

According to a further-feature of the in- .vention, the. steam is fed to the cylinder by a I conduit or. conduits of comparatively small bore, and preferably independently ofthe usual hollow frames of the machine, and the water of condensation is discharged into and conveyed away by'a conduit or conduits o't comparatively large bore, preferablythe hollow frames of themachine.

By such arrangement of conduits, loss of heat units'by radiation or convection on the steam: inlet side otthe cylinders is reduced to a minimum, While on the water outlet si de of" the cylinder more eiiicient condensation. takes place,

tive maintenance of the heatiu'nits in each which results in the more effeccylindeibody and the more efficient utilization of the latent heatof the steam than has previously takenlplace when usingthe machine frame as conduits for and the Water ofcondensation. V 7 Upon the accompanying drawings Figs. 1, 2 and ,3 illustrate diagrams of three examples of the invention as applied eac both the steami toia' two-row .innltiple cylinder drying m chiIi Y F 4 lllustrates a side clevation, and

Fig. 5' a plan of a two-rowdryingmachine (in part) embodying the example of the in vention shownfin Fig. 2. y

vFig. 4 illustrates'a vertical cross. section ot'Fig. eon-line Q0, 00.

. Fig.6 illustratesa transverse sectional elevat-ion ofone of thesteaminlet connections] between the steam piping and the doll 'hez-id a modification.

I 7 illustrates Fig. 8 illustrates a detailhereinafter def:

scribed.

eferring to Figs. 1,2 and the letter isused to denote, the ends ot-tlie cylinders at which steam is admitted,,anc l the letter w is used to denote ends otthe cylinders from which Water of condensation is discharged.-

, In Fig. 1, following the direction of the secutive cylinders.

In 2 steam is admitted to opposite end'sot consecutive pair'sot cylinders, while] the Water of condensat on s discharged from.

the "opposite ends of said consecutive; pairs: of cylinders.

In Fig, 8, steam is admitted to opposite ends ot consecutive sets of cylinderstthree tea set) while the Water ot condensation is discharged tr om the opposite ends of said consecutive sets of cyl nders. I

y In the machine SllOWlilIl Figs. 4:, 4f, and

5, (embodying example; 2) the steam, pip n'gus arranged in a mannersuch'that .one half of the machine can be controlled or supplied/With steam independently of the the other cylinders of such halt.

Said piping-consists of pairs of-sinall-bore other half, and certain of the cylinders of 1 haltcan be controlled independently of steam'pipes a a and 2%, I)? on each, side of;

the machine siip'plied. 'witl '-rsteam from a common supply pipe '0 under the control of four valves one foreach section of cylinders,

,As will be readily understood fromacon; sideration of Fig. '2, the piping in Figs, 4: and 5 is'arranged to convey steam. into con 'secutive pairs ofcylinders in opposite direc- 'tions,lwhile the Water of condensation is 'dischargedifrom said pairs of cylinders at op--.

thedoll. head bearings:

posite ends into the machine frames 6, evia.

To allow for longitudinal expansion and 'fcontraction of the piping, and also foranyi error in fixing the connection betweeneach cylinder Ydo'll head and the steam piping,

axial with a holloW boss 9 on the. piping, and held thereto by a bolt the pipe 7 being ment of the piping. v v 7 Usually there Will'not be less than three free to swivel With any slight endivise movesets of cylinders in ainachinm and there will preferably be not more than four orv live cyl inders to a set. Where. desired, and especially 111* machines having a large number 7 of cylinders, there may'benconsecutive cylinders' supplied with steam from oppos te ends being varied to suit requirements.

lit willjbe understoodthat, although show HIglhG inlet and outlet connections of each cylinder at opposite ends, both'the inlet and haust conduits, the method or sup i outlet connections :may be at the sanie 'cnd,

the connections" for. the next. cylinder being the opposite end; In thisconnection the steam inlet pipewill extend the .tuli length of the; cylinder. see Fig. 7.

Although preterringzto employ small bore.

steam pipes (say 2) and large bore:

steam to opposite ends of consecutive cylinders, or consecutive pairs orsetSot cylinders" may be adopted with any otherand suitable arrangement of piping janccon-. duits. Large bore pipesfwitli or without gillsnnay be used in placeiofthe frames.

And in place of a; single li-u-gejbore pipe,

. tivoor more smaller pipes may be used.

of cylinders from opposite sides of the-mmv ld hen the team is fed to conseoutive'fpa chine, see Figs. and 5, the invent-ion is advantageous in thatboth faces of the materiallto be dried at each edge icfhme in coi g tact with the steam heated end ota cyliin.

'der, instead of only one ace as inthe case oi" the consecutive. single cylinders lslrown minFig. 1. i '1 "In, connection V ventthe displacen'ient of theweftrelatively with the drying of iia'brirn, the equalization ot'the drying hel stopre I v to thefwarp; In addition to even drying,

the invention also serves to expedite the dry .ing,-.orl permits of fewer cylinders and less V V "lVhatI claim is I at one. part of themachine'and consecutive pairs (or setslof cylinders suppliedwvithf Estea'm from "opposite ends at another part,

. the ar'angement or order of the cylinders densatio1ifrom the-cylinders.

steam'being used fora given degree ofdryness,

The machine frames or condenser conduits may be blanked ofl'at intervals, and each divided ofi portion have" its own outlet con-.

steam escaping into trol Valve or trap. v To guard 'agalnst the the traines' 'or conduits',.especially when the cylindersare not' rotating,ijtvater seals may be provided, one I arrangement beinga pipe from the doll head (see Fig,'8). dipping into a Well of Water'in the frame, produced'jbyyan ainnilar flange around the final Water outlet of the conduit. Alternatively, a U or S bend maybe provided 3 in the outlet pipe. The invention may be applied to drying machines other than the two-row type, and also to vertical, as Well. as to horizontal dry:

consisting of at leastf'oneoylinder,a steamconduit along each .sideol the machine, means for supplyingsteamfrom one of said conduits to alternate sections, means for:-

supplyingsteam from the other of said conmachine com- 1.

'duitsto the intermediate sections, and means tor discharging water of condensation from each cylinder at the end opposite "itsysteain 2. In a multi-cylinder drying machine aosupply;

cording to claim 1, small bore pipes foriconveying steam to the cylinders, and; large bore condnits f'or coi'i'veying water of'con;

" In a n'n lti-cylinder .drying machine as} 'cordingfto clain i 1, small borepipies for conveyin SilBLlDlOil'lG: cylinders, and hollow 'inacliinetrames tor conveyin 'densation from the cylinders.

. l. Ina multi cylindefr drying machine 'ac-r. cord ng to claim 1, awsma'l'l' bore pipe: for

conveying steam to-each cylinder, a control conveying Waterot condensation from each cylinder, and a Water seal in said conduit. V 5. In a nnilti-cylinder drying machine-according to claim 1,'a sn'iall bore pipe for conveying steamto each cylinder, acontrol valve in "said pipe, a large boreiconduit for conveying Water ol 'condensation from each g Waterof eon: j

valve in said pipe, a large boreconduit for I cylinder, awater'seal'in said conduit, and f swivel" connections for connectmgthe small 1 bore pipesand large bore conduit-sto the cylinders. I I

Intestimony whereof I. have signed my name to this specification.

GERALD nonf 

